<?php
$str=<<<TEXT

                                                        <span class="sumPage">共<cite>10</cite>页</span>

                    

	</body>
</html>
TEXT;
preg_match_all("/<span\s+class=\"sumPage\">[\x{5171}]<cite>10<\/cite>页<\/span>/uisx", $str, $nn8888);
print_r($nn8888);
